Water-heating system



T. F. NOONAN.

WATER HEATING SYSTEM.

APPL'ICATION FILED OCT. :3, 1919.

Patentgd Jan. 18, 1921.

vii.

lwzrzasZ wam z water passes from the tank through the pipe3 which.terminates :w1th1n about 31K cinemas r. Keenan,

PATENT OFFICE.

or cinoAeo, rumors.

wArnR-nEarmesYsrEt/i.

To all whom. it may concern:

lie it known that I, THOMAS l NooNAN,

citizen of the United l'ltatesu residing at tlhicago, in the county ofCook and State of Illinois, have invented a certain new and usefulimprovement in /Vatcr-lileating lays" toms of which thelollowing is alull, clear,

concise, and exact description.

My ii'ivention relates to water heating systoms and has a number ofobyects and ad-K vantages in View. The water heating system oi myinvention may readily beemployed in cormection with city water supplysystem.

Tllhe component elements thereof," in the prean arrangement whereby theheated water is subject to the heat/oi the products coI np This resultis desirably accomplished by passing bust-ion of the water heatingflame.

at l ast a portion of the hot water supply pipe through the here oi' aflue through which the products of comhustionare discharged.

I will explain my lllYGIltlOll mercifully by reference to theaccompanying draiying which shows a vertical sectional View of a waterheating plant that inclusive of the invention in its preferredembodiment The illustrated tank. 1 is of common type,

being cit elongated cylindrical shape disposed in an upright position.The invention is not to be limited, however, to the shape oi this tank.l Vaterthat s to be heated is introduced into the tank, tln'ough a coldwater supply pipe 2, from any suitahle source as for example the pipingof a city miter supply system. This plpe 2 termiiiates within aboutthree inches of the bot tom of the tank 1 at which point cold waterenters the tank to keep it filled. The cold inches from the bottom ofthe tank. Inthe arrangement illustrated sediment falling into the bottomof the tank 1 will not. pass out through the pipe 3 to the heater. Thepipe B-passes upwardly within the tank and 1s sues through thesidethereot near the upper end of the tank and thereafter passesdownwardly-to the T-fitting 4;. the T-fitting con- Specification ofLetters Patent.

Patented Jan. 18, 1921; Application filed October 1am. snainaissazsa. i

ne-ctingtlie pipe 3 with itspreferably coiled branches 5 and 6, in whichbranches the stream of water that may be flowingthrough the pipe isdivided into two streams to increase the facility with which heat mayreach the water which-is passed through the pipes 23, 5 and 6 for thepurpose of being heated. The upper ends of the pipe branches?! and (3communicate with the in terior of a. hot water supply pipe 7 that issealed at its lower end except for the con nection of the pipe branches5 and 6 therewith and which discharges at its upper end into the tank 1.i

In thepreierred embodiment of the invention the cold water pipe passesthrough the bore of the pipe 7 so that the hot water in the latter pipewill takepart in heating the cold water flowing downwardly in the pipe 3to the T-fitting Heat is preferably applied to the lower end of thepiping portion 4, 5, 6, as for exampleby means of a gas burner 8suitably supplied. wlth gas flowing through the gas pipe 9. A gas flamemay be suitably c0ntrollech the manner of its controll orming noessential part of my invention. a

l have illustrated a jacket 10 which housew the burner 8, this jacketbeing per- :lorated at 11 for the passage of air to the interiorthereof: to support combustion at the burner, the jacket desirably beingelse where closed except at its upper end where it is connected with theoutlet flue 12 for the products of combustion from the burner 8. lint-hepreferred embodiment. of the invention the hot water supply pipe 7 has acon siderahle portion of its length'wi'thiu the bore oifthe flue 12 sothat the hot water "within the pipe 7 may be further subject to the heatof the products of combustion ascending irom the burner and passingthrough theflue or at least such products of combustion may be effectiveto prevent material reductmn oi" the temperature ot the water in thepipe 7.

lhetyCle of water heating operations in" eludes theincommg passage oicold water through the supply pipe? to the bottom of the tank 1 (thedown coming water being subject to the temperatureof the partiallyheated water within the tank) the discharge of cool water from thebottom of the tank into the lower end of the pipe 3, the conveyance ofthe water bythe pipe 3 toward the upper end of the tank (the waterrising in the pipe 3 being subject to the increasing temperature of thewater in said tank), the further conveyance of the water in the pipe 3through the hot water conveying supply pipe 7 where the water in thepipe 3 is further subject to the. temperature of heated water, thedischarge of the water from the main pipe portion 3 into the T-fitting4, at which latter place the water divides into two streamsthat areconveyed upwardly by the coiledpipe branches 5 and 6, the heated waterpassing from the upper ends of these pipe branches into the hot watersupply pipe '7 that conveys the hot water to the upper -is not reducedwhen there is no hot water flowing from the tank. When any faucet isopen, circulation of water follows from the pipe 2, where the water isin a cold condition, to the pipe 13, where the water is hot,

lby way of the piping 3, a, 5, 6 and 7 as hitherto described. r

The assembly of the heater of my invention with a water tank is verysimple, it being only; required to provide a hole near the upper end ofthe tank with which one end of the-pipe I is connected and through whichhole the pipe 3 also passes. In the installing process, in case the tankhappens to be full ofwater, only a few gallons of its water need bewithdrawn from the tank to bring its level below the discharge end ofthe pipe 7 whereafter' the .parts of the equipment illustrated in thedrawing may readily be assembled.

While I haveherein shown and particularly described'thepreferred'embodiment of myinvention I do not wish to be limited to theprecise details of construction shown as changesmay readily be madewithout departing from the spirit of my invention, but

- having thus described my invention I claim as new; and desire tosecure by Letters Patent the following r l. A water heating systemincluding a tank for receiving water to be heated and from whichheatedwater may be discharged;

a cold water supply pipe passing into the upper portion of the tank andextending through the tank and'terminating near the bottom thereof; apipe communicating with the upper portion of the tank for discharginghot water therefrom; a pipe for conveying water from the tank to heatthe water, this pipe terminating at the bottom of the tank, passingupwardly in the tank, and issuing from the upper portion of the tank tothe exterior thereof, this latter pipe being divided into coiledbranches through which water passes therefrom in divided streams; a hotwater supply pipe with whirh the discharge end of said pipe branches areconnected, the pipe portion which leads water to be heated from the tankpassing through the bore of said hot water supply pipe; :1 jacketinclosing the aforesaid coiled pipe branches; a burner within the jacketfor heating the water in said pipe branches; and a flue communicatingwith the upper end of the jacket for discharging products of combustiontherefrom, a portion of the aforesaid hot water supply pipe passingthrough the bore of the due.

2. A water heating system including a tank for receiving water to beheated and from whirh heated water may be discharged a cold water supplypipe passing into the upper portion of the tank and extending throughthe tank and terminating near the bottom thereof; a pipe communicatingwith the upper portion of the tank for discharging hot water therefrom;a pipe for conveying water from the tank to heat the water, this pipeterminating at the bottom of the tank, passing upwardly in the tank, andissuingfrom the upper portion of the tank to the exterior thereof; a hotwater supply pipe with which the discharge end of the latter pipe isconnected, the pipe portion which leads water to be heated from the tankpassing through the bore of said hot water supply pipe; a jacketinclosing the outer lower end portion of the pipe that conveys waterfrom the tank; a burner within the ja lz for heating the water in. thelatter pipe;

and a flue communicating with the upper end of the jacket fordischarging products of combustion therefrom, a portion of the aforcsaid hot water supply pipe passing through the bore of the flue.

In Witness whereof, I hereunto subscribe my name this ninth day ofOctober A. D..

THOMAS F. NOONAN.

